1.Standard:BS6220 2. Color inner box 3.Quick response 4.Most competitive price Series of specificationsA181 5Amp junction box, 60mm,4 terminal,browA183 20Amp junction box, 58mm,4 terminal,browA190 20Amp junction box, 80mm,4 terminal,browA186 20Amp junction box, 86mm,6 terminal,browA188 20Amp junction box, 90mm,3 terminal,browA191 60Amp junction box,, ter.brow BS6220 Brow junction boxes